This can be achieved with the help of date function which is an inbuilt function in php can be used to format the timestamp given by time function. January 1 1970 000000 gmt.
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Timestamp to date php. Change date format to numbers in php. How to convert date format using php 1. Convert timestamp to readable datetime in php solution. Fri 12 apr 2013 155201 0000 daterfc2822 rfc 2822 fri 12 apr 2013 155201 0000 daterfc3339 same as dateatom since php 513 daterss rss fri 12 aug 2013 155201 0000 datew3c world wide web consortium example. 1970 01 01t000000zliterally speaking the epoch is unix time 0 midnight 111970 but epoch is often used as a synonym for unix time. In 32 bit system the unix timestamp will overflow if the date goes beyond year 2038 and this method will return false.
You want to do the opposite which is date. The php date function converts a timestamp to a more readable date and time format. The php mktime function returns the unix timestamp for a date. This function returns a string formatted according to the given format string using the given integer timestamp or the current time if no timestamp is given. The valid range of a timestamp is typically from fri 13 dec 1901 204554 gmt to tue 19 jan 2038 031407 gmt. Unix time also known as posix time or epoch time is a system for describing instants in time defined as the number of seconds that have elapsed since 000000 coordinated universal time utc thursday 1 january 1970 not counting leap seconds.
The computer stores dates and times in a format called unix timestamp which measures time as number of seconds since the beginning of the unix epoch midnight greenwich mean time on january 1 1970 ie. Check the manual page for what other letters represent. Php convert formatted date into unixtime 2. Daterfc1123 rfc 1123 example. Create a date with mktime the optional timestamp parameter in the date function specifies a timestamp. The typical mysql date format is datey m d his.
Php date to timestamp. Specifies an integer unix. Converting javascript date string to php date 1. Time since in php datetime object in seconds. If you have a timestamp that you want to use apparently you do it is the second argument of date. The unix timestamp contains the number of seconds between the unix epoch january 1 1970 000000 gmt and the time specified.
In 64 bit systems this function will still work as intended. Strtotime makes a date string into a timestamp. If omitted the current date and time will be used as in the examples above. Change time to timestamp 3. There are useful constants of standard datetime formats that can be used to specify the format parameter. The unix epoch or unix time or posix time or unix timestamp is the number of seconds that have elapsed since january 1 1970 midnight utcgmt not counting leap seconds in iso 8601.
Why do we need the date function. What is epoch time.
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